Journal of Korean Institute of Architectural Sustainable Environment and Building Systems ISSN:1976-6483(Print) 2586-0666(Online) 한국건축친환경설비학회논문집

Building energy codes are widely used worldwide as a key policy tool for improving building energy efficiency by defining the minimum requirement for the energy performance of new buildings. In Korea, the building energy code includes prescriptive criteria such as U-value requirements for each building component by climate zones and EPI (Energy performance index) as well as performance criteria for primary energy use. The purpose of this study is to suggest the direction to revise building energy code based on the analysis of improvement in energy performance of buildings according to its evolution over the past 20 years. The energy needs and primary energy uses were calculated for three office buildings and four cities. An increasing trend of energy performance was found with the reinforcing of the code, and some recommendations for future revision were suggested.